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Finding the Fourth Proportional to 393,228.41, 588,573.88 and 203,427.45

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Solution

The fourth proportional to 393,228.41, 588,573.88 and 203,427.45 is: 304,484.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,228.41 : 588,573.88 = 203,427.45 : x
  2. Step 2: Convert to fraction form
    393,228.41/588,573.88 = 203,427.45/x
  3. Step 3: Cross multiply
    393,228.41x = 588,573.88 × 203,427.45
  4. Step 4: Simplify right side
    393,228.41x = 119,732,083,036.44
  5. Step 5: Solve for x
    x = 119,732,083,036.44/393,228.41
  6. Step 6: Final answer
    x = 304,484.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.